JP2571970Y2 - Electronics - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a portable computer, a laptop computer or a notebook computer, for example.
The present invention relates to an electronic device such as a processor.

[0002]

2. Description of the Related Art A small electronic device such as a portable computer has a main body case made of a synthetic resin, and a circuit board is fixed in the case. Various circuit components such as a microprocessor are mounted on the circuit board.

[0003] By the way, in this kind of electronic equipment, after assembling, the main functional circuit components such as a microprocessor are repaired or replaced or new functions are added to the small electronic equipment. Circuit components may be attached to a circuit board.

[0004] Such replacement or addition of circuit components has conventionally been performed as follows. In other words, the parts are replaced by disassembling the main body case, taking out the circuit board, removing the circuit parts such as the microprocessor to be replaced inserted into the socket fixed to the circuit board, and then removing the circuit board from the socket. The same kind of circuit components such as a new microprocessor were inserted and connected. In addition, parts addition
After disassembling the main body case and taking out the circuit board, the wiring pad at a site designated in advance on the circuit board is
This has been done by soldering additional circuit components.

[0005] Circuit components mounted on a circuit board include components that generate heat when energized (for example, microprocessors). It is generally known that the higher the performance of this component, the greater the heat generation. Conventionally, a small cooling fan is built in the main body case in order to prevent a component that generates heat from being thermally destroyed due to a rise in temperature, and circuit components that generate heat by blowing the fan. The structure which suppresses the temperature rise of this is adopted.

[0006]

The conventional electronic equipment has a structure in which the main body case is disassembled and the circuit board is taken out as described above when replacing or adding circuit parts. There is also a problem that the work is troublesome, and there is a risk of forgetting to connect the connector to the circuit board in the assembly after the replacement and the additional work. In addition, since a cooling fan is built into the main body case to cool circuit components that generate heat, the cost is high and the operation noise of the cooling fan when used in a quiet state is annoying. There is a problem.

An object of the present invention is to make it easy to replace and add circuit parts to a circuit board, to avoid forgetting to connect a circuit board to a connector during the work, and to generate an operation sound. An object of the present invention is to provide an inexpensive electronic device that can cool circuit components that generate heat without causing any problem.

[0008]

Means for Solving the Problems] was to achieve the object
Therefore, the electronic device according to claim 1 has a keyboard on an upper surface.
De apparatus main body case made of arranged synthetic resin; the key
The fall position to cover the board device and the key
-Standing position raised to expose the board device
The disc supported by the main body case so as to be rotatable over
Play unit and; are accommodated in the main body casing, together with a circuit component which generates heat when it is energized is mounted detachably, a circuit board on which other circuit components are mounted; the present
An opening formed in the body case and facing the circuit board ; made of a material having thermal conductivity , the opening can be opened and closed and exposed outside the main body case;
A lid attached to the main body case in a state; thermal conductivity of
Is constituted by an elastic material having the Re mounting et <br/> to the back side of the lid Rutotomoni, the heat transfer elastic body which is in close contact with the circuit component to the heat generation when closing the opening in the lid; equipped with a It is characterized by: Further, the electron described in claim 2
The device is made of synthetic resin with a keyboard device on the top
And a body case of the keyboard device;
And the keyboard device is exposed.
The main body cable is rotatable over a standing position
A display unit supported by a base;
Circuit components that are housed in
It is mounted detachably and other circuit components are mounted.
Circuit board; pivot point of the display unit
Formed at the rear of the main body case,
Opening facing the circuit board; made of a material having thermal conductivity
The opening is openably and closably covered, and the book
Attached to this body case with it exposed outside the body case
A lid made of a heat conductive elastic material;
It is attached to the back side of the lid, and the lid is
Heat transfer close to the heat-generating circuit parts when the mouth is closed
And an elastic body.

[0009]

According to the structure of the first aspect, the opening of the main body case is
When the closed lid is opened, the heat-generating circuit components mounted on the circuit board in the main case and the wiring portions for adding new functions prepared in advance to the circuit components are exposed to the outside of the main case through the openings. Is done. Therefore, the circuit component that generates heat can be removed from the circuit board through the opening, and then a new circuit component of the same type can be attached to the circuit board through the opening. Furthermore, to add a new function to the electronic device, it is possible to mount the circuit components responsible for its function to a predetermined wiring section of the circuit board through the opening. Also has thermal conductivity
The lid made of material usually closes the opening of the body case
In this state, the heat transfer elastic member provided on the back side of the lid comes into close contact with the circuit component that generates heat with elastic deformation. This heat transfer elastic member transfers heat of the circuit component to the lid. So
And this lid is exposed outside the main body case
The heat of the circuit components transmitted to the lid
Released during. According to the configuration of claim 2, the claim
In addition to the action of 1, the following remarkable effects are exhibited
I can do it. That is, the opening of the main body case and this opening
The closing lid is behind the pivot point of the display unit.
Position, rotate the display unit to the upright position.
When operating the keyboard device by moving it,
The operation unit where the display unit operates the keyboard device
And the heat dissipating lid. for that reason,
The display unit acts as a kind of heat shield and is released from the lid.
Blocks out the hot air of the delivered circuit components to the operator
be able to. At the same time, the display unit
When the display unit is turned to the upright position,
And the lid are in the front-back direction of the body case without overlapping
It is located shifted. Therefore, the area around the lid is
And efficiently dissipate heat from the lid surface.
Display unit by heat released from this lid
Is not overheated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4 are perspective views of a notebook-type portable computer . In the drawings, reference numeral 1 denotes a main body case made of synthetic resin. This body case 1
A bottom case member 2, and a top cover member 3 which is connected to the upper side of the bottom case member 2.
A keyboard device 4 is attached to a front portion of the upper surface of the main body case 1 . The keys of the keyboard device 4 are the main body case 1
Is exposed to the outside of the main body case 1 so as to be operated by an operator from the front side of the main body case 1.

At the rear of the main body case 1, a flat panel type display unit 6 having a liquid crystal display panel 5 is provided.
Is installed. This unit 6 comprises a pivot 7 (FIG. 1,
(See FIG. 2). A display unit 6 for covering the key of the keyboard device 4 to cover the front upper surface of the main body case 1;
As shown in FIG. 4, it is possible to rotate between the upright position inclined slightly backward from the vertical. The display unit 6 is held down by detachably engaging an elastically deformable engagement claw 8 provided at its free end with an engagement groove 9 provided at the front end of the main body case 1. It is supposed to be.

As shown in FIG. 1 and FIG.
A rigid printed wiring board 11 as a circuit board is built in the rear of the switch 1. The wiring board 11 has a front edge fixed to a boss 3a integrally projecting from the back surface of the top cover member 3 via a screw 12, and a mounting plate 13 fixed to the rear edge. The top cover member 3 is provided close to the rear upper wall 3c by being fixed to the rear wall 3b of the cover member 3 via screws 14.

The mounting plate 13 is fixed to a synthetic resin block 27 screwed to the rear edge of the printed wiring board 11, and an additional connector 15 for function expansion is mounted on the mounting plate 13. . Connector 15
Are window holes formed between the rear wall 2a of the bottom case member 2 and the rear wall 3b of the top cover member 3 while being electrically connected to the wiring pattern of the printed wiring board 11. 16 is inserted.

On the upper surface of the printed wiring board 11, when a new function is added, a wiring part (not shown) for adding a function to which a circuit component having the function is attached by soldering or the like is provided in advance. And various circuit components 1 for various operations and controls of the portable computer.
7, 18 are implemented. These circuit components 17, 1
8, the circuit component 18 is a circuit component that generates heat when energized, for example, a microprocessor, which is a socket 19 fixed on the upper surface of the printed wiring board 11.
And is detachably mounted from above.

Reference numeral 20 in FIGS. 1 and 2 denotes a floppy disk drive mounted on the lower surface of the printed wiring board 11. This device includes one side of the main body case 1 (in the direction of arrow A in FIG. 3). through disc out put port (not shown) provided on a side surface) so that the floppy disk is inserted and removed.

Top cover member 3 in main body case 1
A portion of the rear upper wall 3c is formed with an opening 21 (see FIGS. 2 and 3) having, for example, a horizontally long rectangular shape. this
The opening 21 serves as a pivot of the display unit 6.
A display unit located behind the pivot 7
6 is rotated to the upright position.
The unit 6 stands between the keyboard device 4 and the opening 21
It is supposed to be. The opening 21 is provided at least in opposition to each of the wiring portion for adding a function and the detachable circuit component 18 on the printed wiring board 11 ,
The size of the opening 21 in the front-rear direction is such that a fingertip holding the detachable circuit component 18 can enter and exit.

The rear edge 21a of the opening 21 is formed one step lower than the rear upper wall 3c, and the edge 21a has such a strength that it does not move freely. A movable edge 22 having a substantially V-shaped cross section and a convex edge 22a at the rear end is provided at a front edge of the opening 21. The movable edge 22 is formed integrally with the rear upper wall 3c, and can be flexibly deformed, so that the convex edge 22a is moved in the front-rear direction by the flexible deformation.

A lid 23 for opening and closing the opening 21 is detachably attached to the rear upper wall 3c of the top cover member 3. The lid 23 has a rectangular shape slightly smaller than the opening 21, and one side edge thereof is formed with an engaging groove 24 which is engaged and disengaged with a rear edge 21 a of the opening 21 or a convex edge 22 a of the movable edge 22. The other side edge has a convex edge 22a of the movable edge 22.
Or engaging groove 2 engaged with and disengaged from rear edge 21a of opening 21
5 are formed.

The attachment / detachment of the lid 23 is performed in the following procedure.
First, one engaging groove (the engaging groove 24 in FIGS. 1 and 2) of the lid 23 is fitted to the convex edge 22 a of the movable edge 22,
The movable edge 22 is slightly moved to the front side while being flexibly deformed as shown by a two-dot chain line in FIG. As a result, the other engaging groove 25 is opposed to the rear edge 21a of the opening 21 in the vicinity of the rear edge 21a. Next, the other engaging groove 25 is fitted to the rear edge 21a by moving the lid 23 backward. By the above procedure, as shown in FIG. 1, the lid 23 closes the opening 21 and is attached to the top cover member 3. The surface of the lid 23 attached in this way faces the outside of the main body case 1 as shown in FIGS. In this mounting state, the movable edge 22 is deformed flexibly and pushes the lid 23 backward, so that the lid 23 is firmly fixed.

In order to remove the lid 23, the movable edge 22 is slightly moved to the front side while being flexibly deformed as shown by a two-dot chain line in FIG.
a, the one engaging groove 24 of the lid 23 may be removed from the convex edge 22a of the movable edge 22, and the lid 23 may be pulled up.

The lid 23 is made of a material having high thermal conductivity such as an aluminum alloy, and has a plurality of ribs 23a formed on the upper surface thereof extending in the longitudinal direction. These ribs 23a are used not only as an operation section when the lid 23 is attached or detached, but also to increase the surface area of the lid 23 facing the outside of the main body case 1 to improve the heat radiation performance. The back surface of the lid 23 is formed as a flat surface, and a heat transfer elastic body 26 is attached to a part thereof.

The heat transfer elastic body 26 is brought into close contact with the circuit component 18 which generates heat when the lid 23 is attached with the opening 21 closed. This heat transfer elastic body 26
A heat transfer liquid is sealed in an elastically deformable bag made of a material having high thermal conductivity, and heat can be transferred from the circuit component 18 to the lid 23 based on convection of the heat transfer liquid in the bag. It has become.

A portable computer according to the embodiment.
In the configuration of the main body, the lid 23 closes the opening 21 and
In the state where the heat transfer elastic member 26 is attached to the top cover member 3 of the switch 1, the heat transfer elastic body 26 is sandwiched between the lid 23 and the circuit component 18 which generates heat as shown in FIG. Closely related. Therefore, this portable computer
When the heater is operated, the temperature rise of the circuit component 18 that generates heat can be suppressed.

That is, the heat emitted from the circuit component 18 is conducted to the lid 23 through the heat transfer action of the heat transfer elastic body 26, and then the outer surface of the main case 1 is exposed from the upper surface of the lid 23 having a large surface area. Will be released. As a result, the circuit component 18 is prevented from being damaged due to excessive temperature rise, and the component 18 can exhibit its intended function.

Since the heat generated in the circuit component 18 is released by using the lid 23 as described above ,
It is not necessary to incorporate a dedicated cooling fan for cooling the circuit components 18 . Therefore, a cooling structure for the circuit component 18 can be obtained at a low cost, which is also useful for reducing the cost of the entire portable computer. Moreover, according to the cooling structure using the heat transfer elastic body 26 and the lid 23, since there is no mechanically moving parts like a cooling fan, the circuit components 18
No operating noise is generated when cooling the device. Therefore, the portable computer can be used quietly. Further
The opening 21 of the main body case 1 and the opening 21 are closed.
The lid 23 is a pivot serving as a pivot point of the display unit 6.
Since it is located behind the shaft 7, as shown in FIG.
When the play unit 6 is turned to the standing position,
The spray unit 6 is between the keyboard device 4 and the lid 23
Be erected. Therefore, the display unit 6 is
It becomes a kind of heat shield wall and is released from the lid 23 of the main body case 1.
The hot air from the circuit components 18 to the operator.
Can be As a result, heat is radiated to the upper surface of the main body case 1.
Although the cover 23 for the
The operator's passion when operating the key of the location 4 is
Absent. At the same time, the display unit 6 stands up.
When the display unit 6 is rotated to the
23 is the front and rear of the main body case 1 without overlapping vertically
It is located shifted. Therefore, the area around the lid 23 is wide.
To efficiently release heat from the surface of the lid 23.
As well as the heat released from the lid 23
The display unit 6 will not be overheated.
There are advantages.

In order to replace the circuit component 18, it is sufficient to remove the lid 23 and open the opening 21 in the same manner as described above. That is, as shown in FIG.
By opening 1, the circuit components 17 and 18 mounted on the printed circuit board 11 can be seen through the opening 21. For this purpose, a fingertip is inserted into the main body case 21 through the opening 21, the detachable circuit component 18 is picked up, and it is detached from the socket 19, and a new same type of circuit component to be replaced is inserted into the socket 19. Plug-in operation can be performed for component replacement.

Similarly, when a new function is added to the portable computer, the lid 23 is removed and the opening 21 is opened.
A circuit component (not shown) having a function to be added, which is disposed through the opening 21 on a wiring pad provided in a wiring portion (not shown) of a predetermined portion on the printed wiring board 11 facing the opening 21. Can be added, and a component adding operation can be performed.

As described above, while the printed wiring board 11 is housed in the main body case 1, the detachable circuit components 18 can be replaced with the printed wiring board 11 through the opening 21 provided in a part of the main body case 1. And new circuit components can be added, so that when replacing or adding them, the disassembly and assembly of the main body case 1 is required, and the printed circuit board 11 is moved into and out of the main body case 1 and the circuit board 1
The trouble of attaching and detaching a connector (not shown) to and from the connector 1 can be omitted.

Therefore, it is possible to easily replace and add a circuit component to the printed circuit board 11 and to connect a connector (not shown) to the printed circuit board 11 because these connectors remain connected. However, there is no danger of being forgotten while being removed due to replacement of circuit parts and additional work.

The present invention is not limited to the above embodiment. For example, the main body case 1 of the lid 23 for opening and closing the opening 21
The mounting to the main body casing is performed in place of the configuration of the above-described embodiment.
It may be attached to the screw 1 using a fixing part such as a screw that can be attached and detached. In the embodiment, the lid 23 is used.
The heat transfer elastic body 26 attached to the
Although it is arranged so as to be in close contact with only 8, a heat transfer elastic body having a size in contact with a plurality of circuit components that generate heat may be used.

[0031]

[Effect of the invention] According to the electronic apparatus according to claim 1 and 2, in a state in which the circuit board is incorporated in the main body case, replacement of the circuit component to the circuit board through the opening of the body case, additional Since it is possible, it is possible to omit the trouble of disassembling and assembling the main body case, taking out and in of the circuit board, and attaching and detaching the connector to and from the circuit board.
it can. Therefore, replacement of the circuit component to the circuit board, with additional readily performed work, there is no possibility to produce connector forgetting to a circuit board associated therewith.
Furthermore, the said opening closing lid with attached heat transfer elastic body to the back side, the heat of the circuit component can be quickly released to the outside of the main case, for cooling circuit components with the heating a dedicated cooling fan for it <br/> be omitted. As a result, it is possible to reduce the cost of electronic equipment and to radiate heat from circuit components without generating harsh driving noise.
Can be enhanced. Furthermore, according to claim 2,
The opening in the main unit case and the lid that covers this opening
Since it is located behind the rotation support point of the ray unit,
When the play unit is turned to the upright position,
The play unit stands between the keyboard device and the lid
This display unit becomes a kind of heat shield wall.
Therefore, the hot air of the circuit components released from the lid
The heat dissipation lid on the body case.
Although it is a configuration that is located, when operating the keyboard device
Operators don't feel hot. With it
The display unit and the lid must overlap vertically
It is located off the front and back of the body case
The perimeter of the lid is widely opened, and the heat from the surface of this lid is efficiently dissipated.
Work well and the heat released from this lid
Display unit will not be overheated.
There are advantages.

[Brief description of the drawings]

FIG. 1 is a portable computer according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a configuration of a main part of the liquid crystal display taken along a line ZZ in FIG. 3.

FIG. 2 is a sectional view showing a configuration of a main part of FIG. 1 in a state where a lid is separated from a main body case according to the embodiment.

FIG. 3 is an exemplary perspective view showing the entire portable computer according to the embodiment in a state where the display unit is substantially closed;

FIG. 4 is an exemplary perspective view showing the entire portable computer according to the embodiment with the display unit opened;

[Explanation of symbols]

1: Body case, 4: Keyboard device, 6: Display
Unit, 11 ... Printed wiring board (circuit board), 1
7, 18 ... circuit parts, 21 ... opening, 23 ... lid 26 ... heat transfer elastic body.

Claims (3)

(57) [Scope of request for utility model registration] 1. A main body case made of synthetic resin keyboard device is disposed on an upper surface; a collapsed position tilted to cover the keyboard device,
Standing raised to expose the keyboard device
Supported by the main body case so as to be rotatable over the position.
A display unit ; circuit components housed in the main body case and generating heat when energized are detachably mounted, and other circuit parts
A circuit board on which an article is mounted ; an opening formed in the main body case and facing the circuit board ; made of a material having thermal conductivity , the opening can be opened and closed and exposed outside the main body case. State
In a lid attached to the body case; is constituted by an elastic material having a thermal conductivity, Rutotomoni attached to the back side of the lid, when closed the opening in the lid
And a heat transfer elastic member which is in close contact with the heat-generating circuit component. (2)Composition with keyboard device on top
A main body case made of resin; A lying position where the keyboard device is overturned so as to cover the keyboard device,
Standing raised to expose the keyboard device
Supported by the main body case so as to be rotatable over the position.
A display unit; It is housed in the main body case and generates heat when energized
Circuit components are mounted detachably and other circuit parts
A circuit board on which the product is mounted; Slightly behind the fulcrum of the display unit
Formed on the main body case and facing the circuit board.
Opening; The opening is openable and closable, made of heat conductive material
Cover and exposed outside the body case
A lid attached to the body case at; The back side of the lid, which is made of an elastic material having thermal conductivity
And when the opening is closed with this lid
A heat-transfer elastic member closely contacted with the heat-generating circuit component; An electronic device comprising: 3. The apparatus according to claim 2, wherein said lid is provided on a front side.
It has a plurality of ribs exposed to the outside of the body case.
Electronic equipment characterized by the following.